Let’s start with the film holder!
To build a film holder and the rest of the camera we will use a dark synthetic kappa board. We will also need a pencil, ruler, wallpaper knife, polymer glue, and a small piece of aluminum plate or copper.
The dimensions of the bottom part are 12×7 cm. The backside of the film holder is 12×11 cm. For this camera We would like to have a curved film holder – so the image will give you interesting perspective effects. As you see I’ve already marked with a pencil the placeholders for the next pieces.
The next step is to create a construction that will hold our film. For this, we will use five pieces in the format of 2×10 cm.
You are almost there! Now place with glue the polymer sheet to the construction you made. This will prevent from scratches our sheet films.
Finish our film holder with closing it from the top. Just cut off piece in a dimension of 12×7 cm.
Eye of the pinhole camera
Front of the camera
Begin with cutting the following pieces out, then glue it together in way of forming a box.
The aperture of the pinhole camera
Use a stitching needle to do a hole in the copper or aluminum plate. Based on the diameter of our aperture hole and distance from the hole to film we can calculate F stop. Based on F stop you will calculate correct exposure for your photograph.
Extra lightproof protection
We are almost there! The final step ensures that our pinhole camera is lightproof. Create cover from following pieces: Sides – 7×13 cm, Top/Bottom – 7×14 cm and backside – 13×12 cm.